Edexcel IAL · Physics · WPH12 · Waves and Particle Nature of Light
Topic Questions: 51 be able to use for a diffraction grating — WPH12 Waves and Particle Nature of Light
28 WPH12 Waves and Particle Nature of Light topic questions are tagged to this syllabus point across 18 papers (2019–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.
Core finding
This Waves and Particle Nature of Light syllabus point appears in 18 WPH12 papers across 2019–2026, contributing 28 topic questions and 67 marks. The most recent appearance is WPH12/01 January 2026. That equals 6.0% of the 468 topic questions and 5.9% of the 1,138 marks tagged to Waves and Particle Nature of Light. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history.
Topic questions by session
Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use Go to Practice Hub to answer that exact question in the Interactive Practice Hub.
| Paper | Question | Type | Parts | Marks | Difficulty | Practice |
|---|---|---|---|---|---|---|
| WPH12/01January 2026 · Edexcel IAL | Q17 Diffraction Grating Maxima - Edexcel IAL Physics Jan 2026 Q17 |
FRQ | 1 of 2 parts ((a)) | 4 of 7 on the paper |
Hard | Go to Practice Hub |
| WPH12/02January 2026 · Edexcel IAL | Q19 Diffraction Grating and Wave Interference - Edexcel IAL Physics Jan 2026 Q19 |
FRQ | 3 parts ((a), (b), (c)) | 9 | Medium | Go to Practice Hub |
| WPH12/01October 2025 · Edexcel IAL | Q16 Coherence and Diffraction Grating - Edexcel IAL Physics Oct 2025 Q16 |
FRQ | 3 of 5 parts ((b)(i), (b)(ii), (c)) | 8 of 12 on the paper |
Medium | Go to Practice Hub |
| WPH12/02October 2025 · Edexcel IAL | Q2 Diffraction Grating Equation terms - Edexcel IAL Physics Oct 2025 Q2 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH12/01June 2025 · Edexcel IAL | Q15 Electron Diffraction and de Broglie Wavelength - Edexcel IAL Physics May 2025 Q15 |
FRQ | 1 of 3 parts ((b)(ii)) | 3 of 9 on the paper |
Medium | Go to Practice Hub |
| WPH12/01January 2025 · Edexcel IAL | Q14 Diffraction Grating Maxima and Wave Nature - Edexcel IAL Physics Jan 2025 Q14 |
FRQ | 1 of 3 parts ((b)(i)) | 4 of 8 on the paper |
Medium | Go to Practice Hub |
| WPH12/01October 2024 · Edexcel IAL | Q16 Diffraction Grating Laser Experiment - Edexcel IAL Physics Oct 2024 Q16 |
FRQ | 2 of 4 parts ((c)(i), (c)(ii)) | 6 of 9 on the paper |
Easy | Go to Practice Hub |
| WPH12/01June 2024 · Edexcel IAL | Q12 Diffraction Grating with White Light - Edexcel IAL Physics June 2024 Q12 |
FRQ | 2 parts ((a), (b)) | 4 | Medium | Go to Practice Hub |
| WPH12/01June 2023 · Edexcel IAL | Q8 Diffraction Grating Maxima Distance - Edexcel IAL Physics May 2023 Q8 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH12/01January 2023 · Edexcel IAL | Q4 Diffraction Grating Formula - Edexcel IAL Physics Jan 2023 Q4 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH12/01October 2022 · Edexcel IAL | Q18 Diffraction Grating Experiments - Edexcel IAL Physics Oct 2022 Q18 |
FRQ | 3 parts ((a), (b), (c)) | 9 | Medium | Go to Practice Hub |
| WPH12/01June 2022 · Edexcel IAL | Q5 Laser Wavelength with Diffraction Grating - Edexcel IAL Physics June 2022 Q5 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH12/01January 2022 · Edexcel IAL | Q14 Diffraction Grating Laser Wavelength Analysis - Edexcel IAL Physics Jan 2022 Q14 |
FRQ | 2 of 3 parts ((a), (c)) | 6 of 9 on the paper |
Medium | Go to Practice Hub |
| WPH12/01October 2021 · Edexcel IAL | Q2 Wavelength Measurements - Edexcel IAL Physics Oct 2021 Q2 |
MCQ | MCQ · 1 part | 1 | Easy | Go to Practice Hub |
| WPH12/01January 2021 · Edexcel IAL | Q18 Polarisation and Diffraction Gratings - Edexcel IAL Physics Jan 2021 Q18 |
FRQ | 2 of 4 parts ((b)(i), (b)(ii)) | 4 of 9 on the paper |
Easy | Go to Practice Hub |
| WPH12/01October 2020 · Edexcel IAL | Q3 Diffraction Grating Calculations - Edexcel IAL Physics Oct 2020 Q3 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH12/01October 2019 · Edexcel IAL | Q10 Diffraction Grating Maxima Separation - Edexcel IAL Physics Oct 2019 Q10 |
MCQ | MCQ · 1 part | 1 | Medium | Go to Practice Hub |
| WPH12/01June 2019 · Edexcel IAL | Q16 Gas Discharge Tubes and Diffraction Gratings - Edexcel IAL Physics May 2019 Q16 |
FRQ | 1 of 3 parts ((c)) | 3 of 9 on the paper |
Easy | Go to Practice Hub |
Related topic questions in Waves and Particle Nature of Light
Topic question rules and edge cases
- How many topic questions cover this syllabus point?
- 18 question stems cover this subtopic across 18 papers, but only 28 tagged parts and 67 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page.
- Which papers include this subtopic?
- The table lists every matching session from 2019–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available.
- Why can one question appear under several subtopics?
- The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement.
- Can I practise these questions with AI marking?
- Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript.